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Security audit

Pipeworx crypto

Security checks for vulnerabilities and agentic risk

Overview

This crypto price skill is mostly purpose-aligned, but its MCP setup runs an unpinned npm package from the mutable latest tag, which creates a review-worthy supply-chain risk.

Install only if you are comfortable with the Pipeworx gateway receiving your crypto and currency lookup requests and with npm downloading and running mcp-remote at startup. Prefer a pinned mcp-remote version or an isolated environment before using it with sensitive local files or credentials nearby.

A.I.G

Vulnerability Patterns
  • Insecure DependenciesIntroduces malicious components through unsafe dependency sources
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
Findings (1)

T08 · Insecure Dependencies

Warning
Location
SKILL.md:55
Finding

Unpinned npm Package Is Downloaded and Executed Automatically

Content
View full analysis
Remediation
View remediation
`. 2. Use a lockfile and package integrity hashes to ensure reproducible dependency resolution. 3. Prefer a locally installed or vendored dependency over downloading executable code at Skill startup. 4. Remove `-y` where practical so first-time installation requires explicit user approval. 5. Disable npm lifecycle scripts when they are unnecessary, such as by installing with `--ignore-scripts` after verifying compatibility. 6. Review package provenance, maintainer activity, release signatures, and published contents before upgrading. 7. Test upgrades in an isolated environment and update the pinned version only after security review. 8. Run the MCP process with least privilege and restrict its access to sensitive files, credentials, and network resources. ]]>

SkillSpector

Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (1)

External Transmission

Medium
Category
Data Exfiltration
Confidence
60% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 36)May include surrounding context.

Example: Bitcoin price

bash
curl -s -X POST https://gateway.pipeworx.io/crypto/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"get_crypto_price","arguments":{"id":"bitcoin"}}}'

Static analysis

No suspicious patterns detected.